Enhancing search on dataset structure page

[mavenzer]

So this feature should be improved from the current search implemented in the structure section #1684 , which only returns the first occurrence rather than returning all the occurrences. This feature helps to the users when there are a massive number of columns that have a common word spread across all the columns list.

For example: Say the Sales denormalization table has multiple occurrence of Transaction columns: Transaction_Quantity, Transcation_Date,
Transaction_ID, Order_Value_Transaction, Gross_Transaction_Amount etc

Current State:

Expected State

I'm happy to contribute the above-described feature(Just by tweaking the search functionality in the helper fuction)